title: Pneumococcal vaccines for preventing otitis media.
mesh_terms: D000208:Acute Disease; D006801:Humans; D007223:Infant; D010033:Otitis Media / Q000517:prevention & control*; D022242:Pneumococcal Vaccines / Q000627:therapeutic use*; D016032:Randomized Controlled Trials as Topic; D018074:Vaccines, Conjugate / Q000627:therapeutic use
chemical_list: D022242:Pneumococcal Vaccines; D018074:Vaccines, Conjugate